function microf1 = MicroF1(Pre_Labels,test_target)
%Computing the Macro_AUC
%Pre_Labels       - If the ith testing instance belongs to the jth class, then Pre_Labels(j,i) is +1, otherwise Pre_Labels(j,i) is -1
%test_target: the actual labels of the test instances, if the ith instance belong to the jth class, test_target(j,i)=1, otherwise test_target(j,i)=-1

[num_class,num_instance]=size(Pre_Labels);
num_P_instance = zeros(num_class,1);%number of positive instance for every label
num_N_instance = zeros(num_class,1);
count_valid_label = 0;
fm = zeros(num_class,1);
sumTP=0;
sumTN=0;
sumFP=0;
sumFN=0;
for i = 1:num_class
    num_P_instance(i,1) = sum(test_target(i,:) == 1);
    num_N_instance(i,1) = num_instance - num_P_instance(i,1);
    num_P = sum(Pre_Labels(i,:) == 1);
    num_N = num_instance - num_P;
    pre=Pre_Labels(i,:);
    pre0=pre;
    instance=test_target(i,:);
    pre0(pre0==-1)=0;
    TP=sum(pre0==instance);
    pre0=pre;
    pre0(pre0==1)=0;
    TN=sum(pre0==instance);
    FP=num_P-TP;
    FN=num_N-TN;
    sumTP=sumTP+TP;
    sumTN=sumTN+TN;
    sumFP=sumFP+FP;
    sumFN=sumFN+FN;
    
end


microf1=2*sumTP/(2*sumTP+sumFN+sumFP);



end

